001    /*
002     * Copyright 2010-2013 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.jet.lang.psi;
018    
019    import com.intellij.lang.ASTNode;
020    import org.jetbrains.annotations.NotNull;
021    import org.jetbrains.annotations.Nullable;
022    import org.jetbrains.jet.lang.psi.stubs.PsiJetPlaceHolderStub;
023    import org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes;
024    
025    import java.util.ArrayList;
026    import java.util.Collections;
027    import java.util.List;
028    
029    import static org.jetbrains.jet.lang.psi.stubs.elements.JetStubElementTypes.ANNOTATION;
030    
031    /**
032     * Type reference element.
033     * Underlying token is {@link org.jetbrains.jet.JetNodeTypes#TYPE_REFERENCE}
034     */
035    public class JetTypeReference extends JetElementImplStub<PsiJetPlaceHolderStub<JetTypeReference>> {
036    
037        public JetTypeReference(@NotNull ASTNode node) {
038            super(node);
039        }
040    
041        public JetTypeReference(PsiJetPlaceHolderStub<JetTypeReference> stub) {
042            super(stub, JetStubElementTypes.TYPE_REFERENCE);
043        }
044    
045        @Override
046        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
047            return visitor.visitTypeReference(this, data);
048        }
049    
050        @NotNull
051        public List<JetAnnotation> getAttributeAnnotations() {
052            return getStubOrPsiChildrenAsList(ANNOTATION);
053        }
054    
055        @Nullable
056        public JetTypeElement getTypeElement() {
057            return JetStubbedPsiUtil.getStubOrPsiChild(this, JetStubElementTypes.TYPE_ELEMENT_TYPES, JetTypeElement.ARRAY_FACTORY);
058        }
059    
060        public List<JetAnnotationEntry> getAnnotations() {
061            List<JetAnnotationEntry> answer = null;
062            for (JetAnnotation annotation : getAttributeAnnotations()) {
063                if (answer == null) answer = new ArrayList<JetAnnotationEntry>();
064                answer.addAll(annotation.getEntries());
065            }
066            return answer != null ? answer : Collections.<JetAnnotationEntry>emptyList();
067        }
068    }